/* platform data for the PCA9539 16-bit I/O expander driver */

struct pca953x_platform_data {
	/* number of the first GPIO */
	unsigned gpio_base;

	/* initial polarity inversion setting */
	uint16_t invert;

	void *context;		/* param to setup/teardown */

	int (*setup) (struct i2c_client * client,
		      unsigned gpio, unsigned ngpio, void *context);
	int (*teardown) (struct i2c_client * client,
			 unsigned gpio, unsigned ngpio, void *context);
};
